Quantifying Antibiotic Distribution in Solid and Liquid Fractions of Manure Using a Two-Step, Multi-Residue Antibiotic Extraction
Antibiotic distribution and analysis within liquid and solid fractions of manure are highly variable due to each compound’s respective physiochemical properties. This study developed and evaluated a uniform method extracting 10 antibiotics from 4 antibiotic classes (tetracycline, sulfonamides, macro...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-12-01
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| Series: | Antibiotics |
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| Online Access: | https://www.mdpi.com/2079-6382/11/12/1735 |
| _version_ | 1827642085395660800 |
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| author | Carlton Poindexter Andrea Yarberry Clifford Rice Stephanie Lansing |
| author_facet | Carlton Poindexter Andrea Yarberry Clifford Rice Stephanie Lansing |
| author_sort | Carlton Poindexter |
| collection | DOAJ |
| description | Antibiotic distribution and analysis within liquid and solid fractions of manure are highly variable due to each compound’s respective physiochemical properties. This study developed and evaluated a uniform method extracting 10 antibiotics from 4 antibiotic classes (tetracycline, sulfonamides, macrolides, and β-lactam) from unprocessed manure, solid–liquid separated manure, and composted solids. Through systematic manipulation of previously published liquid chromatography tandem mass spectrometry methods; this study developed an extraction protocol with optimized recovery efficiencies for varied manure substrates. The method includes a two-step, liquid-solid extraction using 10 mL of 0.1 M EDTA-McIlviane buffer followed by 10 mL of methanol. Antibiotics recoveries from unprocessed manure, separated liquids, separated solids, and heat-treated solids using the two-step extraction method had relative standard deviations < 30% for all but ceftiofur. Total antibiotic recoveries were 67–131% for tetracyclines, 56% for sulfonamide, 49–53% for macrolides, and 1.3–66% for β-lactams. This is the first study to use one protocol to assess four classes of antibiotics in liquid and solid manure fractions. This study allowed for more precise risk assessment of antibiotic transport in manure waste stream applied to fields as a liquid or solid compost. |
| first_indexed | 2024-03-09T17:23:39Z |
| format | Article |
| id | doaj.art-076c36e36f4d44e489fa992e3acd20eb |
| institution | Directory Open Access Journal |
| issn | 2079-6382 |
| language | English |
| last_indexed | 2024-03-09T17:23:39Z |
| publishDate | 2022-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Antibiotics |
| spelling | doaj.art-076c36e36f4d44e489fa992e3acd20eb2023-11-24T12:53:28ZengMDPI AGAntibiotics2079-63822022-12-011112173510.3390/antibiotics11121735Quantifying Antibiotic Distribution in Solid and Liquid Fractions of Manure Using a Two-Step, Multi-Residue Antibiotic ExtractionCarlton Poindexter0Andrea Yarberry1Clifford Rice2Stephanie Lansing3Department of Environmental Science and Technology, University of Maryland, College Park, MD 20742, USADepartment of Environmental Science and Technology, University of Maryland, College Park, MD 20742, USASustainable Agricultural Systems Lab, U.S. Department of Agriculture, Agricultural Research Service, Beltsville Agricultural Research Center, Beltsville, MD 20705, USADepartment of Environmental Science and Technology, University of Maryland, College Park, MD 20742, USAAntibiotic distribution and analysis within liquid and solid fractions of manure are highly variable due to each compound’s respective physiochemical properties. This study developed and evaluated a uniform method extracting 10 antibiotics from 4 antibiotic classes (tetracycline, sulfonamides, macrolides, and β-lactam) from unprocessed manure, solid–liquid separated manure, and composted solids. Through systematic manipulation of previously published liquid chromatography tandem mass spectrometry methods; this study developed an extraction protocol with optimized recovery efficiencies for varied manure substrates. The method includes a two-step, liquid-solid extraction using 10 mL of 0.1 M EDTA-McIlviane buffer followed by 10 mL of methanol. Antibiotics recoveries from unprocessed manure, separated liquids, separated solids, and heat-treated solids using the two-step extraction method had relative standard deviations < 30% for all but ceftiofur. Total antibiotic recoveries were 67–131% for tetracyclines, 56% for sulfonamide, 49–53% for macrolides, and 1.3–66% for β-lactams. This is the first study to use one protocol to assess four classes of antibiotics in liquid and solid manure fractions. This study allowed for more precise risk assessment of antibiotic transport in manure waste stream applied to fields as a liquid or solid compost.https://www.mdpi.com/2079-6382/11/12/1735UPLC-MS/MSdairy manuretetracyclinesβ-lactamssulfonamidesmacrolides |
| spellingShingle | Carlton Poindexter Andrea Yarberry Clifford Rice Stephanie Lansing Quantifying Antibiotic Distribution in Solid and Liquid Fractions of Manure Using a Two-Step, Multi-Residue Antibiotic Extraction Antibiotics UPLC-MS/MS dairy manure tetracyclines β-lactams sulfonamides macrolides |
| title | Quantifying Antibiotic Distribution in Solid and Liquid Fractions of Manure Using a Two-Step, Multi-Residue Antibiotic Extraction |
| title_full | Quantifying Antibiotic Distribution in Solid and Liquid Fractions of Manure Using a Two-Step, Multi-Residue Antibiotic Extraction |
| title_fullStr | Quantifying Antibiotic Distribution in Solid and Liquid Fractions of Manure Using a Two-Step, Multi-Residue Antibiotic Extraction |
| title_full_unstemmed | Quantifying Antibiotic Distribution in Solid and Liquid Fractions of Manure Using a Two-Step, Multi-Residue Antibiotic Extraction |
| title_short | Quantifying Antibiotic Distribution in Solid and Liquid Fractions of Manure Using a Two-Step, Multi-Residue Antibiotic Extraction |
| title_sort | quantifying antibiotic distribution in solid and liquid fractions of manure using a two step multi residue antibiotic extraction |
| topic | UPLC-MS/MS dairy manure tetracyclines β-lactams sulfonamides macrolides |
| url | https://www.mdpi.com/2079-6382/11/12/1735 |
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